I recently removed every Nokia PC Suite item from my computer, as the programme, following an update, failed to connect to my Nokia 'phones. Reinstalled, the programme now works fine for the telephones and sychronising with Outlook.

However, it is producing a quantity of errors in Windows Search, as seen in Event Viewer under Applications, when Outlook is booting up or running. The error message reads as follows:

"The protocol handler MDatastorePH.MDatastoreProtocol.1 cannot be loaded. Error description: Class not registered." This occurs within the category Gatherer.

I have tried deleting the whole Nokia key, including in Safe Mode, but cannot (I use Search ONLY for Outlook, nothing else). I have tried setting the "Included" and "ExtExclusionsUsed" values to zero. No effect. I have tried booting up the comp (XP, SP3, home) with all available services enabled. Nix.

The error first appears one or two seconds before Outlook's starting-up is acknowledged by Events, and then repeats a few minutes later. The errors then continue at intervals of half-an-hour or so (it varies). Within Protocols exist also Outlook, Outlook Express, IE8 History and a few others - all with the same types of value settings. I presume Nokia is there, also, to enable Search if required to catalogue Nokia items not viewable conventionally in the computer's main filing system. However, frankly, I don't know.

The functioning of Search, which only catalogues Outlook as stated, does not appear to be impaired by these errors. However, I have had a series of difficulties with Nokia on this comp these last several years (misbehaving drivers, etc.), so prefer either to have nothing installed from them or, if it must be, at least working correctly.

A solution may be to unravel the Registry's indecipherable child/parent settings so that I can do what I will with the key. So far, any changes I have made have been thrown back to default, either immediately or after an interval (including an interval after a reboot).

Thanks! A complete reinstal of Outlook was done just before the clear-out and reinstal of PC Suite, a couple of days' ago. So, will initially run a repair from the disc and see how it goes. Am also reading up on those XP security permission settings!

I have fixed the above issue, as follows:
1. Remove all trace of anything Nokia, including its files in Installer and the programme PC Connectivity Solution. I ended up with one Nokia item still on the comp: c:\windows\system32\drivers\pccsmcfd.sys, which checks suggested should stay put.
2. Remove all trace of Windows Desktop Search 4, including its two log files: C:\WINDOWS\KB940157.log and C:\WINDOWS\KB940157Uninst.log.
3. In Regedit, go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\ProtocolHandlers, click ProtocolHandlers, go to nokia.mplatform.mdatastore in list on right and delete it, having first backed up the ProtocolHandlers key, if desired (though I personally had no wish to put the nuisance back).
4. Reinstal Search.
5. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols. All being well, the nokia.mplatform.mdatastore item will no longer be present as a sub-key under Protocols, nor will the errors recur in Event Viewer.
Which part of the above fix was the critical part, I don't know. Nor have I yet reinstalled Nokia PC Suite and its accompanying programmes (all automatically installed from the one download). However, I tentatively attach significance to the two .log files' deletions and the registry edit. If you want to keep the info in the old .log files, paste their contents elsewhere under disconnected file headings and change the KB940157 reference at the head of the C:\WINDOWS\KB940157Uninst.log file's body to something else (I wrote it back to front).

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